Research Article
Ash Evaluation of Indonesian Coal Blending for Pulverized Coal-Fired Boilers
Table 6
XRD analysis of BD-1A ash.
| Temp. (°C) | Compound name | Chemical formula | SemiQuant (%) |
| 550 | Quartz low | O2Si1 | 72 | Calcium sulfate | Ca(SO4) | 15 | Silicon oxide | SiO2 | 2 | Chloride sulfur oxide | SO2Cl2 | 11 |
| 600 | Quartz high | O2Si1 | 85 | Calcium sulfate | Ca(SO4) | 15 |
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